chap, in.] THE CRANIAL CONTENTS. 31 



for- facial muscles, at middle part of asc. frontal 

 conv. ; (4) centre for muscles of mouth, tongue, and 

 jaws, at inf. part of asc. frontal conv. According to 

 Ferrier, (1) centre for rotation movements of head 

 and neck, at post, end of first frontal conv. ; (2) centre 

 for muscles of face, at post, end of second frontal 



Fig. 8. Skull with. Parietal Bone removed, showing principal part 



of Cortex concerned in " cerebral localisation " (Gavoy). 

 a, Fissure of Rolando ; 6, ascending frontal convolution, with, in front of it, the 



three frontal convolutions partly shown ; c, ascending parietal convolution ; 



c, superior parietal lobule. 



conv. ; (3) centre for articulate language, on post, 

 part of third frontal conv. ; ^4) centre for upper 

 limb, at upper end of asc. frontal conv. ; (5) centre 

 for lower limb, on upper two-thirds of asc. parietal 

 conv. and part of sup. par. lobule. 



Of the brain generally little has to be said. In 

 a surgical sense, it presents itself simply as a large 

 mass of soft tissue that may be damaged by shaking 

 as gelatine may be shaken in a case. As it is of very 



